Potato-Crusted Sausage Quiche with Caramelized Onions and Gruyere

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I really enjoy having friends over for casual brunches during the holidays. A dinner party can be intimidating and/or a lot of work, but it’s still just so nice to have your home filled with the people this time of year. I love when the Christmas tree is lit with morning sun streaming in and a table full of friends laughing over coffee at the table.

This rich sausage quiche is pretty wonderful, if I do say so myself. Browned turkey sausage, caramelized onions and gruyere are all nestled into a fluffy egg filling on a golden hashbrown potato crust. Perfect for holiday brunching!

It was inspired by one my cousin’s lovely wife Lindsay made once for lunch (hi Linds!) years ago – her shredded potato crust was a total revelation to me. I’ve made variations of it many times, and I’m always asked for the recipe.

I created this special version in collaboration with Grimm’s Fine Foods, makers of European sausages and deli meats – right here in British Columbia. I was already a fan of their Turkey Farmers Sausage, and I love that they’re local – so I was very happy to work together.

These savoury sausages are made with 100% turkey meat, with no soy, gluten or added MSG. They’re a lean option (unlike most sausages) and they’re fully cooked, which makes it really easy to enjoy them for breakfast even on crazy-busy mornings. I’ll definitely be adding them to this breakfast sandwich, but they’re also very versatile outside of the English muffin.

There are a few secrets to the crispiest hashbrown-potato crust:

First of all, you want to squeeze the excess moisture out of the grated potatoes using a clean dish towel. Then, you’re going to cook the hashbrown on both sides before adding the quiche filling, and you’re going to bake it on the lower oven rack on top of a preheated baking stone (or baking sheet).

Finally, serve it straight away to minimize the crust steaming under the quiche. It will inevitably soften a bit, it’s truly delicious either way – I’ve made it several times in testing, and we’ve been happily eating leftovers straight from the fridge.

Because caramelized onions take time (they’re so worth it), I recommend doubling the amount, and saving the rest to fold into a creamy dip or to nestle into a comfy pasta.

The crispy-edged bits of turkey farmer sausage are so yummy – I had to swat away many hands in order to have enough to go inside the quiche.

Serve this quiche with a simple green salad and crusty bread. And go say hi to my friends at Grimm’s! What are your go-to holiday brunch dishes?

This post was sponsored by Grimm’s, but as always, all words and opinions are my own. Thank you wholeheartedly for supporting me in my collaborations with the hand-picked sponsors who keep the Foodess kitchen running!

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Potato-Crusted Sausage Quiche with Caramelized onions and Gruyere

Prep Time: 30 minutes
Cook Time: 50 minutes
Total Time: 1 hour 20 minutes
Servings: 6 servings


  • 5 Grimm’s Turkey Farmer Sausage rounds 8 oz/225 g
  • 6 tbsp vegetable oil divided
  • 2 medium onions halved then thinly sliced crosswise (yields 2 ½ cups)
  • 1 ½ cups grated yellow potato packed (about 2 medium)
  • ¾ tsp kosher salt divided
  • 8 eggs
  • 1 ¼ cups milk
  • ¾ cup heavy cream
  • ? tsp freshly ground black pepper
  • ? tsp ground nutmeg
  • 1 ¼ cups 2 ½ oz/70g gruyere
  • 1 green onion dark green part only, minced
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  • Preheat oven to 450ºF with a baking stone (or baking sheet) placed on the lower rack. Slice sausage rounds into strips, and then crosswise into 1/2″ pieces (you can stack and cut a few at a time).
  • Heat 1 tbsp oil in a 10” oven-proof cast iron skillet over medium-high heat. Add sausage and cook, stirring occasionally, until nicely browned on both sides, 2-3 minutes. Transfer to a plate.
  • Add another tbsp of oil to skillet and reduce heat to medium-low; add onions and cook until soft and deeply golden, about 25 minutes.
  • Meanwhile, prepare crust and filling. Place grated potatoes in the centre of a clean kitchen towel, and gather the towel around it to forcefully wring out the excess moisture. Open towel and sprinkle potatoes with 1/4 tsp salt; toss to season evenly.
  • In a medium bowl, whisk together eggs, milk, cream, 1/4 tsp salt, pepper and nutmeg.
  • Transfer caramelized onions to plate with sausage, and carefully wipe skillet clean with paper towels. Add 2 tbsp oil and increase heat to medium-high. When shimmering hot, add grated potatoes and press firmly into the skillet so that the entire bottom is evenly covered. Cook until golden brown on underside, about 4 minutes (use a spatula to gently lift it to check). Carefully flip the hashbrown onto a plate (I put a plate upside-down on top of the hashbrown in the skillet and quickly flip the whole thing over, holding the plate firmly to the skillet with oven mitts). Add another 2 tbsp oil to the pan, and gently slide the hashbrown back in to brown the other side, another 4 minutes or so. (It doesn’t tear easily, but if it does, don’t fret – just piece it back together and press into the pan – no one will ever know.)
  • Remove skillet from heat and sprinkle hashbrown with the cheese, then the sausage and caramelized onion. Pour the egg mixture over top, and sprinkle with green onion. Reduce oven temperature to 350ºF and bake on baking stone or sheet for about 20 minutes, until filling is set. Serve warm or room temperature.
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